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Sunatsu Lighthouse

Fl R 5s🇯🇵Northern Kyūshū, JPOperational

Location & Light Range

About Sunatsu Lighthouse

The Sunatsu Lighthouse is a 10-meter round tower built from fiberglass. Its white exterior matches the structure it is attached to. The light produces a single red flash every 5 seconds. The focal height of the light is 12 meters, and its geographic range extends for 5 nautical miles. This lighthouse is operational and serves the Northern Kyūshū area.

Light & Optic

Characteristic Signature
Fl R 5s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
5s
Raw Code
Fl.R. period 5s
Focal Height
12m
Geographic Range
5NM

Location

City
Northern Kyūshū
Country
🇯🇵JP
Latitude
33.8935°
Longitude
130.8940°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
round
Tower Color
white
Material
fiberglass

Structure: White glass reinforced plastic(grp) fiberglass building; 10

References & Identifiers

Admiralty No.
M5345
NGA No.
9844
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Frequently Asked Questions

How do mariners identify Sunatsu Lighthouse at night?+
Sunatsu displays the characteristic Fl R 5s — 1 red flash every 5 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The red color may indicate a specific sector or warning zone.
Which ports and harbors does Sunatsu Lighthouse guide vessels into?+
Sunatsu Lighthouse assists vessels approaching 5 nearby ports. The closest is Oku at 0.8 NM to the SW. Other ports served include Kanmon (1.2 NM ENE), Shimonoseki (3.1 NM NE), Tobata/Kitakyushu (3.8 NM WNW), Ikina (3.9 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sunatsu Lighthouse still active and maintained?+
Yes, Sunatsu Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Sunatsu Lighthouse?+
Sunatsu Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Sunatsu Lighthouse?+
You can track vessels near Sunatsu Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.